Assembled from SHO data in Hubble palette.

NGC 2440 is a planetary nebula, one of many in our galaxy. The nebula is situated in Puppis about 4,000 light years from the Sun. Its central star, HD62166, is possibly the hottest known white dwarf. HD62166 has an exceptionally high surface temperature of about 200,000 kelvins and a luminosity 1,100 times that of the Sun. This dense star, with an estimated 0.6 solar mass and 0.028 solar radius, has an apparent magnitude of 18.9.

Assembled October 24, 2010